Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754241AbZKCRuT (ORCPT ); Tue, 3 Nov 2009 12:50:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753896AbZKCRuS (ORCPT ); Tue, 3 Nov 2009 12:50:18 -0500 Received: from lennier.cc.vt.edu ([198.82.162.213]:40641 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752176AbZKCRuQ (ORCPT ); Tue, 3 Nov 2009 12:50:16 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: 2.6.32-rc5-mmotm1101 - kernel BUG at net/ipv4/tcp_input.c:3707! From: Valdis.Kletnieks@vt.edu Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1257270611_4220P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Tue, 03 Nov 2009 12:50:11 -0500 Message-ID: <5765.1257270611@turing-police.cc.vt.edu> X-Mirapoint-Received-SPF: 128.173.14.107 turing-police.cc.vt.edu Valdis.Kletnieks@vt.edu 2 pass X-Mirapoint-IP-Reputation: reputation=neutral-1, source=Fixed, refid=n/a, actions=MAILHURDLE SPF TAG X-Junkmail-Info: (0) X-Junkmail-Status: score=10/50, host=dagger.cc.vt.edu X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A020201.4AF06D55.003B,ss=1,fgs=0, ip=0.0.0.0, so=2009-07-29 21:33:33, dmn=2009-09-10 00:05:08, mode=multiengine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6083 Lines: 106 --==_Exmh_1257270611_4220P Content-Type: text/plain; charset=us-ascii Seen right after I started 'fetchmail'. Reproducible - 3 out of 3. I'll bisect this tonight if nobody jumps up and yells they know what it is... Looking at the traceback, I wonder if we started sending the SYN packet, but didn't finish the paperwork before the SYN/ACK came back? [ 87.269743] ------------[ cut here ]------------ [ 87.270011] kernel BUG at net/ipv4/tcp_input.c:3707! [ 87.270011] invalid opcode: 0000 [#1] PREEMPT SMP [ 87.270011] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0/charge_full [ 87.270011] CPU 0 [ 87.270011] Modules linked in: ext4 jbd2 crc16 [last unloaded: microcode] [ 87.270011] Pid: 2421, comm: fetchmail Not tainted 2.6.32-rc5-mmotm1101 #1 Latitude D820 [ 87.270011] RIP: 0010:[] [] tcp_parse_options+0x62/0x273 [ 87.270011] RSP: 0018:ffff880002603af8 EFLAGS: 00010202 [ 87.270011] RAX: 0000000000000001 RBX: ffff880002603b78 RCX: 000000000000000a [ 87.270011] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff81ad9fb0 [ 87.270011] RBP: ffff880002603b48 R08: ffff88007e2d9000 R09: 0000000000000001 [ 87.270011] R10: 00000000000006f6 R11: ffff880002603a78 R12: 0000000000000000 [ 87.270011] R13: ffff88007eb0ece8 R14: 0000000000000000 R15: ffff88007e693168 [ 87.270011] FS: 00007fa02ff827c0(0000) GS:ffff880002600000(0000) knlGS:0000000000000000 [ 87.270011] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.270011] CR2: 00000032cf7411e0 CR3: 000000007e41d000 CR4: 00000000000006f0 [ 87.270011] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.270011] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 87.270011] Process fetchmail (pid: 2421, threadinfo ffff880079234000, task ffff88007d2bc300) [ 87.270011] Stack: [ 87.270011] ffff880002603b48 ffffffff00000001 000000000000000a ffffffff00000000 [ 87.270011] <0> 0000000000000000 ffff88007903bbc0 ffff88007e693168 ffff88007c6eb2c0 [ 87.270011] <0> 0000000000000000 0000000000000000 ffff880002603bc8 ffffffff81430486 [ 87.270011] Call Trace: [ 87.270011] [ 87.270011] [] tcp_v6_conn_request+0x171/0x3cb [ 87.270011] [] tcp_rcv_state_process+0x5f/0x857 [ 87.270011] [] tcp_v6_do_rcv+0x313/0x445 [ 87.270011] [] ? _spin_lock_nested+0x42/0x49 [ 87.270011] [] ? tcp_v6_rcv+0x2aa/0x61c [ 87.270011] [] tcp_v6_rcv+0x445/0x61c [ 87.270011] [] ip6_input_finish+0x1bf/0x31f [ 87.270011] [] ip6_input+0x4d/0x54 [ 87.270011] [] ip6_rcv_finish+0x22/0x26 [ 87.270011] [] ipv6_rcv+0x45e/0x4b4 [ 87.270011] [] netif_receive_skb+0x29e/0x2c8 [ 87.270011] [] process_backlog+0x8b/0xc1 [ 87.270011] [] net_rx_action+0xed/0x2b0 [ 87.270011] [] ? handle_edge_irq+0x16a/0x176 [ 87.270011] [] __do_softirq+0x127/0x23c [ 87.270011] [] ? rcu_read_unlock_bh+0x21/0x23 [ 87.270011] [] call_softirq+0x1c/0x34 [ 87.270011] [ 87.270011] [] do_softirq+0x44/0xf0 [ 87.270011] [] ? rcu_read_unlock_bh+0x21/0x23 [ 87.270011] [] _local_bh_enable_ip+0x120/0x16e [ 87.270011] [] local_bh_enable+0xd/0xf [ 87.270011] [] rcu_read_unlock_bh+0x21/0x23 [ 87.270011] [] dev_queue_xmit+0x3e4/0x408 [ 87.270011] [] ? dev_queue_xmit+0x144/0x408 [ 87.270011] [] neigh_resolve_output+0x1ef/0x240 [ 87.270011] [] ? ip6_output_finish+0x0/0xfc [ 87.270011] [] ip6_output_finish+0x9c/0xfc [ 87.270011] [] ip6_output2+0x2bf/0x2c8 [ 87.270011] [] ip6_output+0xcd1/0xce6 [ 87.270011] [] ? rcu_read_unlock+0x21/0x23 [ 87.270011] [] ? nf_hook_slow+0xca/0xdb [ 87.270011] [] ? dst_output+0x0/0xd [ 87.270011] [] dst_output+0xb/0xd [ 87.270011] [] ip6_xmit+0x3fb/0x4d4 [ 87.270011] [] ? __inet6_hash+0xe5/0x122 [ 87.270011] [] inet6_csk_xmit+0x265/0x274 [ 87.270011] [] ? _raw_spin_lock+0xe9/0x1ab [ 87.270011] [] tcp_transmit_skb+0x816/0x85f [ 87.270011] [] tcp_connect+0x3ae/0x409 [ 87.270011] [] tcp_v6_connect+0x4f0/0x55e [ 87.270011] [] inet_stream_connect+0xa0/0x268 [ 87.270011] [] sys_connect+0x75/0x98 [ 87.270011] [] ? path_put+0x1d/0x22 [ 87.270011] [] ? trace_hardirqs_on_caller+0x16/0x13c [ 87.270011] [] ? audit_syscall_entry+0xcb/0x19c [ 87.270011] [] system_call_fastpath+0x16/0x1b [ 87.270011] Code: e9 04 4d 85 f6 88 4d c0 0f 94 c2 31 c0 45 85 e4 0f 94 c0 21 d0 31 d2 89 c6 89 45 b8 e8 70 6a cc ff 8b 45 b8 8a 4d c0 85 c0 74 04 <0f> 0b eb fe 0f b6 d1 49 83 c7 38 8d 14 95 ec ff ff ff 49 8d 45 [ 87.270011] RIP [] tcp_parse_options+0x62/0x273 [ 87.270011] RSP --==_Exmh_1257270611_4220P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFK8G1TcC3lWbTT17ARAiVKAJ42ifX+tSTTCL53cJVe9bc0Ih55vACfVnBH Wozda++f/hvR7LfRgonaIWY= =7ZFj -----END PGP SIGNATURE----- --==_Exmh_1257270611_4220P-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/